In the chemical reaction in which carbon, hydrogen and oxygen absorb heat and combine to form carbon dioxide and water which of the following is considered to be a reactant?
a. heat
b. water
c. oxygen
d. carbon dioxide

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.

Galileos view of arrangement of the universe